title: Diagnosing early rheumatoid arthritis (RA). What are the problems and opportunities?
mesh_terms: D001172:Arthritis, Rheumatoid / Q000175:diagnosis*; D001182:Arthroscopy / Q000379:methods; D001707:Biopsy, Needle; D019937:Diagnostic Techniques and Procedures; D005260:Female; D005500:Follow-Up Studies; D005820:Genetic Testing; D006801:Humans; D008297:Male; D012680:Sensitivity and Specificity; D012698:Serologic Tests / Q000379:methods; D012720:Severity of Illness Index; D013582:Synovial Fluid / Q000166:cytology; D013997:Time Factors